Committer information seems to be case-sensitive, but case is not consistent throughout app

Our SVN installation is integrated with Active Directory, so that our SVN usernames are of the form "DOMAIN\UserA". FishEye seems to get confused with the case of the users' credentials. For instance, the Repository Activity page displays the user as "DOMAIN\UserA", with a matching link (http://myfisheye/fisheye/committer/asrs-products/DOMAIN%5CUserA). Clicking this link results in a 404 error. However, if I manually change the case of the link to all lower (http://myfisheye/fisheye/committer/asrs-products/domain%5Cusera), then the page is loaded correctly.

Either the mixed-case links should work as expected, or the user information should be lower case throughout the application (such as they are in the Committer Mapping setup).